Monthly Archives: November 2017

My journey from ‘Life in the Freezer’ to the ‘Blue Planet 2’

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Will sailing past South Georgia on the RRS James Cook
Will sailing past South Georgia on the RRS James Cook
In this blog post, Dr Will Reid shares his story of how he became a marine biologist and the inspiration that led him to his exciting career choice

Blue Planet II is well underway now and for many a marine biologist, like myself, it is an opportunity to say, “I work on those” and get a bit giddy with excitement. We have seen some wonderful footage of walruses, the graceful Ethereal snailfish and colourful coral polyps. The bobbit worm seemed to get the hospital that my partner works at very excited and I’m sure last week’s episode about plastic pollution will get many people thinking about the impact our daily lives have on the ocean.

For me personally, sitting watching the second episode of Blue Planet II and seeing those hydrothermal vents was a personal highlight. It will also go down as a big landmark in my research career. I spent about four months at sea in the Antarctic across three research expeditions, during my PhD at Newcastle University. I was part of team working on the hydrothermal vents where those crabs covered in bacteria live. The inspiration that lead me to sitting on a ship, watching a video feed from a remotely operated vehicle over two kilometers below, began with another David Attenborough documentary. This was not Blue Planet I but an even earlier BBC documentary series called Life in the Freezer, which planted the seed in my mind about becoming a marine biologist.

Becoming a Marine Biologist
St Andrew's Bay, South Georgia showing hundreds of penguins
St Andrew’s Bay, South Georgia showing hundreds of penguins

Life in the Freezer aired in 1993. I was thirteen at the time. The opening scene where David Attenborough was standing in a vast snow and ice landscape was mesmerising. The series covered the ebb and flow of the ice around Antarctica and the animals that depend on the productive waters of the Southern Ocean. The part that really caught me was all the amazing life on the island of South Georgia. The coastal areas were packed full of elephant seals, fur seals, penguins, petrels and albatross. Little did I know that in just over ten years I would be living and working on the island.

I realised during that series that I wanted to be a scientist but not just any scientist, one that went to the Antarctic. I took Maths, English, History, Biology and Chemistry Highers and got onto a marine biology degree course. In my final year, I got my first opportunity to do some work related to South Georgia. I spent hours watching video footage of the deep-sea Patagonian toothfish and crabs attracted to baited deep-sea landers as part of my final year project. This was very fortunate because just as I was about to graduate a job working for British Antarctic Survey was advertised for a two-year fisheries scientist working on South Georgia on these animals. I applied. I got an interview. I didn’t get the job.

First disappointment, then an opportunity

The great thing about getting an interview is that you can often ask for feedback. So, I just asked the question “What skills and experience do I need to get the job?”. The answer sent me on a two-year mission in order to get what I needed second time round. This included: going back to university and doing a masters in Oceanography; learning to drive boats; sea survival training; and going to sea as a fisheries observer on a Portuguese deep-water trawler off Canada. My decision paid off because the job was advertised again. Once more I applied. Once more I got an interview.

Second time lucky
Working as a fisheries scientist - setting weekly fishing nets in Cumberland Bay
Working as a fisheries scientist – setting weekly fishing nets in Cumberland Bay

I got the job at British Antarctic Survey second time round. I was finally going to South Georgia! The next few weeks were a whirlwind of activity: medicals; advanced boat driving training; first aid courses; and learning to drive a JCB. Then I was finally deployed. I flew to down through South America to the Falkland Islands with part of the team that I would living and working with for the next two years. We sailed from the Falklands on the UK research vessel, the James Clark Ross, to South Georgia. I arrived in South Georgia on the 22nd November 2004.

The island of South Georgia was truly stunning. I spent two years on the island doing science that helped manage the commercial fisheries around the island. The research was varied. I worked on fish larvae, managed an aquarium which housed crabs, aged Patagonian toothfish using their ear bones called otoliths, undertook diet studies on icefish and went on fish stock assessments around the island.

The scenery and animal life were also truly amazing. I would go camping and hiking in order to visit Gentoo, king and rock hopper penguin colonies; climb snow-capped mountains; walk where explorers like Shackleton had been; and visit old abandoned whaling stations. The research base where I stayed was also in front of an elephant seal breeding beach for a couple of months of the year. I even met my current partner on the island. She was the doctor in my second year. But life on South Georgia had to come to an end.

Getting into hot water in Antarctica

Once I left South Georgia, I had a couple more months working for British Antarctic Survey back in Cambridge. I was wondering how on earth I would ever get back to the Antarctic. I stumbled across my next opportunity in the photocopy room. On the wall was an advert for a PhD at Newcastle University working on Antarctic hydrothermal vents. I applied. I got the PhD position. I moved to Newcastle.

The PhD was part of 5 year NERC programme trying to find and understand hydrothermal vents in the Antarctic. Hydrothermal vents are sites on the seafloor that release very hot fluids, rich in minerals into the water at the bottom of the ocean and are surrounded by high densities of life.

In 2010, I went back to the Antarctic as part of the first scientific expedition to sample these truly amazing habitats. We sailed on the UK science vessel, the James Cook with scientists from different universities around the UK.  When we arrived at our first location, we used a remotely operated vehicle (ROV) to dive down over 2 kms to hunt for the vents. After a number of hours searching the seafloor we eventually found our first hydrothermal vent field. There was a huge amount of relief on the boat as the scientists got to work.

We visited a series of sites over the next 6 weeks along the East Scotia Ridge. We discovered whole new communities and species and mapped where the different animals lived around the vents. My work focused on what the animals were eating and constructing food webs at each of the sites we visited.

Hydrothermal vent crabs
Hydrothermal vent crabs (Kiwa tyleri)

This brings me back to those hydrothermal vent crabs in The Deep episode of Blue Plant II. The crabs live in areas where hot water pores over them which provides the conditions for the bacteria to grow. We collected the samples from the vents using a suction sampler on the ROV Isis. I then looked at the biochemical composition of the crabs and the bacteria. They were very similar. This indicated that the bacteria living on those crabs were its food source.

These large-scale scientific expeditions are collaborative efforts. Scientist never undertake their work in isolation on these types of projects. They are a team effort, bringing together scientific disciplines. I worked with scientists that had backgrounds in chemistry, geology, microbiology, biology, computer science and supported by mechanical and electrical engineers, technicians and a large ships crew. There is no way I could have undertaken this work without the support of so many scientific and technical disciplines. They helped me add meaning to my work and place the results in the context of the system.

The scientific party involved in sampling hydrothermal vents in the Antarctic
The scientific party involved in sampling hydrothermal vents in the Antarctic
Will there be another Antarctic adventure?

Watching Blue Planet II the other weekend gave me a huge amount of personal pride. To sit there with my kids and my partner and show them on TV the Antarctic crab that I helped discover felt like a massive landmark in my scientific career. I was even there at the moment when the crab stuck its claw into the hot water. Life in the Freezer was the series that inspired me to work in the Antarctic, which set me on the road (or boat) to South Georgia for 2 years and then to studying for my PhD at Newcastle University.

For many people, Blue Planet II will inspire them too, some of whom will go into marine science as well. Whether you are into maths, biology, chemistry, physics, engineering, geology or microbiology, there is a career for you that involves our Blue Planet.

For me, I am about to start another Antarctic adventure. Next year, I am going to explore the seabed that has not been exposed to open waters for approximately 120,000 years. I’ll be spending about 3 weeks working in the area where a large chunk of the Larsen C ice-shelf broke off. The research team has been assembled from a number of different universities and institutions and will once more be a collaborative effort. It just goes to show that sometime adventures never truly end.

Find out more….

British Antarctic Survey

Marine research at Newcastle University

The Larsen C ice shelf mission

Research papers about hydrothermal vents:

  1. The Discovery of New Deep-Sea Hydrothermal Vent Communities in the Southern Ocean and Implications for Biogeography
  2. Microdistribution of Faunal Assemblages at Deep-Sea Hydrothermal Vents in the Southern Ocean
  3. Spatial Differences in East Scotia Ridge Hydrothermal Vent Food Webs: Influences of Chemistry, Microbiology and Predation on Trophodynamics

World Toilet Day: Waste Management & Antibiotic Resistance

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The United Nations have designated the 19th November as “World Toilet Day”, whilst the title may seem chuckle worthy, it actually exists to inspire action to tackle a very serious global crisis. 60% of the world’s population do not have access to adequate toilet facilities in their home – this can lead to wastewater flowing back into the ecosystem completely untreated, which in turn exposes humans to potentially fatal bacteria and diseases.

Newcastle University’s Professor David Graham, who investigates antibiotic resistance, was involved in a study which focused on the Ganges River in the foothills of the Himalayas. Each year masses of pilgrims descend on sacred sites along the river to bathe in the water. The existing waste handling systems in these areas cannot cope with the demand and ultimately, untreated human wastes ends up in the river.

Water sediment samples from the rivers show strains of antibiotic resistant gene levels about 60 times greater per capita when the pilgrims are present compared with other times of the year.  Once in the water these genes may then be ingested by other users of the river, potentially creating widespread antibiotic resistance.

Professor David Graham explains: “In the age of international travel, antibiotic resistance genes and organisms in the gut of individuals as a result of inadequate sanitation can be carried anywhere, exposing wider populations to such resistance.

We know that many ‘hotspots’ of antibiotic resistance exist around the world, particularly in densely populated areas, such as urban Africa, the subcontinent and Latin America, where there is inconsistent sanitation and generally poorer water quality.

If we can stem the spread of such antibiotic resistant genes locally – possibly through improved local sanitation and waste treatment – we have a better chance of limiting its spread on a global scale.”

Professor Graham’s work has influenced policy on an international level; presenting evidence to the  US Presidential Advisory Council on Combatting Antibiotic-Resistant Bacteria he explained that that current policy underestimates the importance of improving water quality and waste management at global scales, which is key to reducing antibiotic resistance in health systems around the world.

For more information on how Newcastle University is working towards the UN’s Sustainable Development Goals visit ncl.ac.uk/globalchallenges.

Measuring the Lake District

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Every year our first year Surveying and Mapping  Sciences and GIS students take part in an eight day field trip to the Seathwaite Valley in the heart of the Lake District. In this blog post Tim Hajda tells us about his experience of it last Easter.

We arrived at Glaramara House, our hotel which served as a base for the fieldcourse, on Thursday morning after a scenic two-and-a-half hour coach ride from Newcastle.  The setting was stunning: a pastoral valley of green fields, dry stone walls and streams, surrounded by craggy fells, waterfalls and oak forests.  Our mission was to create a detailed map of the valley, so our first task was to lay the foundations by creating a network of known reference points.

Newcastle University surveying students setting up targets
Practicing setting up targets in front of the Glaramara House, our base for the fieldcourse

Shortly after arriving we donned our high-vis and waterproofs to brush up on the surveying skills we’d be using over the next eight days.  The valley is famous for being the wettest inhabited place in England, and it definitely lived up to its reputation.  After a soggy afternoon of measuring angles and levelling, we dried off and enjoyed what would be the first of many delicious dinners.

On Friday morning we enjoyed a full English breakfast before beginning our next task: establishing the primary control stations (reference points) throughout the valley.  We were divided into teams and taken by minibus to our assigned locations.  We spent the rest of the day measuring the angles and distances between points.  We would be using this data later to compute the coordinates of the stations.  The blustery weather was a challenge but we persevered.

Saturday’s assignment was to determine the height of points around the valley using spirit levelling.  Simple enough…or so we thought.  My team quickly realized that those lovely green fields were essentially giant mud pits and the stone walls an endless maze to navigate through, but it was a great feeling when we arrived at our last benchmark.  Another job finished and I’ve never been more grateful for a hot shower!

On Sunday the GIS students joined us, along with the sunshine – and we went out in teams to create secondary control networks around the valley.

Geomatic students walking in the Seathwaite Valley
Heading out into the field to design a control network.

One of my favourite aspects of the fieldcourse was working with my course mates.  It provided a great opportunity to get to know each other better.  Certain team members had particular strengths and we all worked together to complete our assigned tasks.  At the end of the exercise it was a great feeling to look at our finished maps together and be able to say, “we made this!”

I learned a lot of valuable lessons – good communication was vital, not only among team members but also with other teams to make sure everyone got the measurements they needed.  I also learned the importance of checking instrument settings before going out into the field and how important it is to book accurately and clearly with good sketches.  There are few things as frustrating as trying to decipher muddled notes after a long day in the field!

Newcastle University geomatics student surveying the Seathwaite Valley
Enjoying a sunny day of surveying in the beautiful Seathwaite Valley.

Another part of what made the fieldcourse enjoyable was the support of the staff and the surveying industry.  Throughout the trip, the staff were always ready to patiently answer questions, transport us to and from the field and give us helpful tips.  One evening, representatives from Leica Geosystems visited to present information about their company and entering the surveying industry.  It was a great opportunity to learn more about the jobs we’ll be doing after graduation.

All in all, it was a fantastic week at Glaramara and it shows what makes Newcastle University’s geomatics courses different from other universities’.  The hands-on learning approach using top-of-the-line equipment, in a beautiful setting, all with the constant support of a knowledgeable and patient staff, made it a truly fun and rewarding experience.

Find out more about our geomatics courses: https://www.ncl.ac.uk/engineering/undergraduate/geomatics/

Protecting our Coral Reefs

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Coral reefs are among the most bio-diverse eco-systems on the planet, but climate change and human interference threaten to destroy these essential marine environments. Research led by Newcastle University focuses on adapting and restoring coral in order to protect reefs.

What is coral and why is it important?

Corals are what are known as “sessile” animals, this means that they permanently take root to the ocean floor, much like a plant, however, corals are not plants as they do not produce their own food. Each coral is made up of thousands of tiny coral creatures known as polyps. Corals have a symbiotic relationship with a form of algae known as “zooxanthellae” that lives inside the corals’ tissues – the algae are what give coral its bright colours.

Coral reefs provide a habitat for around 25% of all marine life, with estimates suggesting reefs support the livelihood of around 2 million different species. In addition to the essential role they play in sustaining ocean health, coral reefs also contribute to the prevention of coastal erosion as well as helping to provide food security and income for millions of people in coastal communities.

 Beautiful, bright coral reefs provide homes for an array of creatures such as this crinoid. Photos by Tim Dixon.

What threatens the survival of coral reefs?

Human interference with marine life, through practices such as fishing, tourism and pollution have a negative effect on the health of coral reefs. One of the biggest threats which is likely to cause coral reefs to bleach, and eventually die, is climate change. Corals are sensitive to changes in water temperature and cannot survive if the temperature rises too much. Climate change has already had an effect on water temperatures in certain areas of the world, and this is predicted to get worse over the coming decades.

A clown fish peeks out from a sea anemone attached to a coral reef. Photo by Tim Dixon.

What is being done to protect coral reefs?

Assisted Evolution

Whilst existing conservation measures such as Marine Protected Areas are vital when it comes to protecting reefs from the damages of human impact, other solutions are required to help coral species adapt to changes in environmental conditions such as increasing sea temperatures.

With the continued threat of climate change and how it might affect corals hanging over their heads, scientists at Newcastle University are conducting a pioneering study into the “feasibility of using selective breeding and an innovative mass re-population method to help corals affected by bleaching.”

Professor of Coral Reef Biology, John Bythell, explains: “During coral bleaching events, it is possible to observe healthy colonies next to bleached colonies, suggesting that some corals are better adapted to higher temperatures. This means that one possible solution could be to selectively breed corals that can withstand higher than normal temperatures and successfully pass this onto offspring.”

The ground-breaking five-year “Assisting Coral Reef Survival in the Face of Climate Change” project will face many challenges; Dr Guest explains that the assisted evolution approach will “involve certain risks for recipient populations such as resource trade-offs between heat tolerance, growth and reproduction.”

If the team are successful in passing on the desirable traits to coral offspring they will then transplant the coral onto damaged reefs using a technique already developed by Newcastle University.

 Coral reefs support the livelihood of a huge array of creatures. Photos by Tim Dixon. 

Coral Transplantation

After challenging expensive and often ineffective existing coral transplantation strategies which focus on “attaching fast-growing coral species onto damaged reefs to speed their recovery”, a team of scientists at Newcastle University developed a more cost-effective solution centered around the use of more robust, slow-growing coral species.

Using plastic wall plugs,  an object more commonly used to fit screws into brickwork, Newcastle University’s team created coral “plug-ins”, where they grow healthy corals on cement cylinders which have been embedded with the plastic wall plugs. These coral “plug-ins” can then be slotted into pre-drilled holes in damaged reefs.

The hope is that through the use of the innovative techniques developed by Newcastle University led research, coral reefs will be given the ability to thrive and continue to provide a habitat for millions of marine species for generations to come.

A pygmy seahorse camouflaged among the coral. Photo by Tim Dixon. 

If this post has sparked your interest and you want to find out more about Newcastle University’s research then head over to ncl.ac.uk/nes/research/marine.

Marie Curie’s legacy lives on at Newcastle University

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Marie Curie in her laboratory
Marie Curie in her laboratory

Today we are celebrating the 150th anniversary of the birth of Marie Sklodowska-Curie. She was a remarkable scientist whose ground-breaking research into radioactivity led to the development of cancer treatment with radioactive isotopes, and mobile X-ray units for field hospitals during World War 1.

Dr Curie was the first woman to win a Nobel prize, and the first person ever to win it twice and in two different sciences (Chemistry and Physics).

The Marie Sklodowska-Curie Fellowship

The European Commission set up the Marie Sklodowska-Curie Research Fellowship Programme which provides two years of funding for researchers across the world and promotes interdisciplinary research and collaboration.

We talked to Dr Ruth Rodriguez-Barrueco, one of the recipients of a Fellowship, about her research in Newcastle University’s Institute of Genetic Medicine:

Dr Rodriguez-Barrueco, Marie Sklodowska-Curie Fellow, Newcastle University
Dr Rodriguez-Barrueco, Marie Sklodowska-Curie Fellow, Newcastle University

What does your research involve?

Ruth’s research is looking at finding a new therapeutic approach to certain aggressive types of breast cancer. She is targeting a small population of cells found within tumours that have stem cell characteristics and is hoping to describe the vulnerabilities of these cells so that new drugs can be designed that target them specifically.

Ruth is using new technologies called CRISPR libraries which allow the elimination of different pieces of DNA to identify which genes are essential for the cancer cells to survive.

All of her findings will then be published in international journals and the CRISPR library will be deposited in a public repository which is available for other cancer researchers to access.

What brought you to Newcastle University?

Ruth is originally from Barcelona and has spent time working in Spain as well as at Columbia University in New York. She explained that she enjoyed the collaborative aspect of working at Newcastle University. The proximity of the Royal Victoria Infirmary and the Northern Institute for Cancer Research also means that she is able to work on real patient tissue samples to validate her findings. She went on to praise the supportive environment within the University and her colleagues.

What do you hope your research will lead to?

Ruth hopes that the  long term result of her research will be the development of new drugs that will target these currently incurable breast cancers. She would also like to see the clinical trials happening at Newcastle as there is a good structure and resources available that would allow this to happen in a short time frame.

What has the Marie Sklodowska-Curie Fellowship allowed you to do?

Ruth explained that the Fellowship has allowed her to establish the methods and collaborations which will lead to a bigger research project. She started her research in March of this year and has already started to see the benefits of the Fellowship.

 

“One never notices what has been done; one can only see what remains to be done”

Marie Sklodowska-Curie

Bonfire Night | The Science of Fire

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Remember, remember the 5th of November, gunpowder, treason and plot! We see no reason why the science of fire should ever be forgot!

For this bonfire night, we are looking into the gravity defying properties of water using fire!

Step 1

Pour the water into your container and add the food colouring to colour the water to whatever colour you like, we chose blue.

Step 2

Place the candle in the middle of the water but make sure the wick and wax of your candle stays dry.

Step 3

Get an adult to help you light the candle and make sure the wick is burning for about 20 seconds before moving onto step 4.

Step 4

Place your glass/plastic cup over the candle, this will push all the water away from the candle

Step 5

Wait for a few moments and watch the candle go out and the water rise on the inside of the cup!

The science!

First of all, why does the candle go out?

Fire needs three things to burn; oxygen, fuel and heat. These three things make up the fire triangle which you can see below.

If one of them is taken away, the fire is put out. By putting the cup over the candle, the oxygen is taken away from the fire so it goes out!

But… it doesn’t go out straight away. This is because there is still some oxygen trapped inside the cup but once the fire has used up all the oxygen there is none left so the candle goes out.

So, why does the water in the cup rise after the flame goes out? When the candle is lit, the particles in the air take in some of the heat from the flame and get hotter. When the particles get hotter, they have more energy so move faster and this increases the pressure inside the cup.

After the flame has gone out, the particles cool down and move more slowly and this decreases the pressure in the cup. The pressure outside the cup is then higher than inside the cup so the water is pushed inside the cup until the pressure outside the cup is the same as the pressure inside the cup.